Enum I2cErrorKind 

#[non_exhaustive]
pub enum I2cErrorKind {
    AddressNack,
    DataNack,
    ArbitrationLost,
    ClockStretchTimeout,
    BusBusy,
    BusProtocolError,
    AdapterGone,
    Unknown {
        errno: i32,
    },
}

The class of I²C bus condition that caused the failure.

Variants follow the conventions in Documentation/i2c/fault-codes.rst. See the amdgpu note in the crate documentation for current hardware limitations.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

AddressNack

The slave did not acknowledge its I²C address byte (ENXIO).

DataNack

The slave acknowledged its address but NACKed a data byte.

ArbitrationLost

Arbitration was lost to another bus master (EAGAIN). Retry is appropriate.

ClockStretchTimeout

The slave held SCL low beyond the adapter timeout threshold (ETIMEDOUT).

BusBusy

The bus was busy and the transaction could not be started (EBUSY).

BusProtocolError

An unexpected START or STOP condition was observed on the bus (EPROTO).

AdapterGone

The I²C adapter was suspended or removed (ESHUTDOWN/ENODEV).

Unknown

An errno that does not map to any known I²C condition.

Fields

errno: i32

The raw OS error number.

Trait Implementations

impl Debug for I2cErrorKind

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.